Safety-lock for water-gage mountings.



J. R. GIBSON. SAFETY LOOK FOR WATER GAGE MOUNTINGS.

APPLICATION FILED JULY 17, 1913.

Patented Feb. 10, 1914.

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JOSEPH ROBERT GIBSON, F OUTBEMQNQ; QUEBEQbA NADA.

sunrvm'ocx FOR. WATER-GAGE noummes' Specification of Letters Patent.

Batented Eeb. 1.0., 1914.

Application filed July 1?;19l33 Serial No. 779,653.

T 0 all whom it may concern:

Be it known that I, JOSEPH ROBERT GIB- soN, a subject of the King of Great Britain, and resident of 7%17 Durocher street, in the town of Outremont, Province of Quebec, Canada, have invented certain new and useful Improvements in Safety-Locks for Tater-Gage Mountings; and I do hereby declare that the following is a full, clear, and exact description'of the same.

The invention relates to improvements in safety locks for water gage mountings as described in the present specification and.

illustrated in the accompanying drawings thatform part of the same.

The invention consistsessentially of the rigid connection arranged between the valve handles.

The objects of the invention are to devise a means of avoiding serious accidents to steam boilers and even to life and property resulting from the inaccurate indications by water ages due to the inopportune closing of a. valve, and to provide a simple, cheap and eflicient device for the said purpose.

In the drawings, Figure 1 is a perspective view of a water gage and mountingand the locking device secured thereto. Fig. 2 is a. perspective detail of a locking nut. Fig. 3 is a perspective detail of the rod and fixed nut.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, 1 is the gage glass communicating with the boiler through the valve casings 2 and 3.

4 and 5 are valve stems rojecting into the casings 2 and 3 respectively for controlling the communication of the gage glass with the boiler.

G and 7 are lever handles rigidly secured in the center thereof to the outer ends of the stems I and 5 respectively, one section of each of said handles being circular in cross section and the other square as customary.

10 is a nut rigidly secured, on the lower end of the rod 8 adjacent to the handle 9 and having the lug extension 11 projecting laterally therefrom, said lug having a vertical orifice therethrough corresponding to the circular section of the handle 6 and adapted to be mounted on said sectionv 0* said handle 6.-- i

12 is a nut having an internal thread corresponding to the upper threaded portion of the rod 8 and turning thereon, said nut having a lug 13 projecting laterally therefrom with a vertical orifice- 14 therethrough corresponding to the circular section of the handle 7 and adapted to be mounted thereon.

In the'use of this device the adjustable nut 12 is screwed tothe proper place on the rod corresponding to the distance between the handles 6 and 7 and the two lugs mount- 'ed on the circular sections of the handles.

This is done when the valves are open and the water running into the water gage glass, therefore the valves must remain open until the locking rod is removed.

This application has been limited to water ga e mountings but it must be understood t ere may be other applications of the invention and it may be'done in different ways, the chief feature being that the handles of valve stems are rigidly connected and held in one position.

What I claim is 1. In a safety lock for Water gage mountings, a rod, lugs extending laterally from said rod having vertical orifices therethrough, and valve handles having projectiing pieces extending into said vertical orices. Y

2. In a safety lock for water gage mountings, a rod, a lug fixedly secured to said rod at the lower end thereof, a lug,adjustably secured to said rod-at the upper end thereof, said lugs having vertical orifices therethrough, and lever handles adapted to operate valves, each having one section thereof extending upwardly through a lug.

3. In a device of the. class described, in combination, valve casings, valve stems projecting from said valve casings and rotatable, lever handles rigidly mounted on said valve stems, each having one section thereof substantially circular in er'oss secti011,elug and having a. handle at the lower end having a, veriicel orifice therethl'ough there it. V v 10 mounted on the circular section of one of Signed at flee city of Montreal, Quebec, said lever handles, a 1 W having a vertical Canada, this thirteenth day of May, 1913.

-23 emfice therethrough and mounted. on the V ,JOSEPH ROBERT GIBSON. cncular sectlon of theother lever handle, 3- vVxtnesse t rod mgxclly secured to one of 521d lugsencl THOMAS DORIAN,

edjustebly secured (.O'lihi: other of said lugs 50m? J. MQGEE, 

